performance of sife - eldeen dosimeter over broad absorbed dose and dose rate ranges of γ – radiation and at different temperatures

background: results are presented on some dosimetric characteristics of sife – eldeen dosimeter based on the radiation induced conductivity (ric) of 3.5 m aqueous urea solutions. the studied characteristics were the response (ric) of sife – eldeen dosimeter in broad ranges of absorbed dose, dose rates and at different irradiation temperature. materials and methods: kent eil5007 conductivity meter (kent industrial measurements–brown boveri) was used for the measurement of samples ric. results: ric of 3.5m urea aqueous was studied at low (0 – 462 gy), as well as, at high (0 - 2592 kgy) absorbed radiation dose ranges. the coefficient of variation cv%, associated with ric measurement of 3.5 m urea solution as a function of absorbed radiation dose, was found to be not more than 3.5% for both high and low absorbed radiation dose ranges. the effect of dose rate on ric was studied in the range 0.035 - 5.969 kgy/h. the temperature effect on this system, at different doses, was also studied. conclusion: the obtained results show the importance of using this dosimeter for dose evaluation in industrial gamma radiation processes , as well as in medical fields. iran. j. radiat. res., 2008 6 (3): 135-140